Optimization based Approach to Improve Power Extraction in a Single Phase Grid Connected Photovoltaic System

Tanguturi, Jitendra and K, Siva Kumar (2021) Optimization based Approach to Improve Power Extraction in a Single Phase Grid Connected Photovoltaic System. In: 2021 National Power Electronics Conference, NPEC 2021, 15 December 2021 through 17 December 2021, Bhubaneswar.

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Abstract

Cascaded H-bridge (CHB) inverters are preferred for photovoltaic (PV) applications due to its modularity and also they produce high quality output voltage and current, which is an important criteria for grid connection. Partial shading, damage of PV cells, aging effect etc., in a PV system causes reduction in the PV power. In a PV system connected to single phase grid with a CHB inverter, this reduction in PV power creates power imbalance issue. This power imbalance causes some of the H-bridge modules (HBM) to undergo overmodulation resulting in a distorted grid current. Under this condition, to estimate the amount of power that can be extracted without letting any HBM cross the linear modulating region, an optimization based approach is presented in this paper. Simulation results are included to support the proposed concept. © 2021 IEEE.

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IITH Creators:	IITH Creators ORCiD K, Siva Kumar UNSPECIFIED
Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Cascaded H-bridge (CHB) Inverter; h-bridge module (HBM); optimization; power extracted
Subjects:	Electrical Engineering
Divisions:	Department of Electrical Engineering
Depositing User:	. LibTrainee 2021
Date Deposited:	12 Sep 2022 11:11
Last Modified:	12 Sep 2022 11:11
URI:	http://raiithold.iith.ac.in/id/eprint/10548
Publisher URL:	http://doi.org/10.1109/NPEC52100.2021.9672551
Related URLs:	Author

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